0 physical exercise that increases the rate at which your heart works -- 可提高心跳频率的运动;有氧运动
1 of the heart -- 心脏的;心脏病的
cardiovascular 心血管的
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
再长的路,一步步也能走完,再短的路,不迈开双脚也无法到达。